<template>
  <transition name="move">
    <div class="food" v-show="showFlag" ref="food">
      <div class="food-content">
       <div class="image-header">
         <img :src="food.image">
         <div class="back" @click.stop="hide">
           <i class="icon-arrow_lift"></i>
         </div>
       </div>
       <div class="content">
         <h1 class="title">{{food.name}}</h1>
         <div class="detail">
           <span class="sell-count">月售{{food.sellCount}}份</span>
           <span class="ratings">好评率{{food.ratings}}%</span>
         </div>
         <div class="price">
           <span class="now">￥{{food.price}}</span>
           <span class="old" v-show="food.oldPrice">￥{{food.oldPrice}}</span>
         </div>
         <div class="cartcontrol-wrapper">
           <cartcontrol :food="food" @add="addFood"></cartcontrol>
         </div>
         <transition name="fade">
          <div class="buy" v-show="!food.count || food.count === 0" @click="addFirst($event)">
            加入购物车
          </div>
         </transition>
       </div>
       <split></split>
       <div class="info" v-show="food.info">
         <h1 class="title">商品信息</h1>
         <p class="text">{{food.info}}</p>
       </div>
       <div class="rating">
          <h1 class="title">商品评价</h1>
          <rating-select :ratings="food.ratings" @select="selectRating" :selectType="selectType" @toggle="toggleContent" :onlyContent="onlyContent"></rating-select>
          <div class="rating-wrapper">
            <ul v-show="food.ratings && food.ratings.length">
              <li v-show="needShow(rating.rateType, rating.text)" v-for="(rating, index) in food.ratings" :key="index" class="rating-item border-1px">
                <div class="user">
                  <span class="name">{{rating.username}}</span>
                  <img class="avatar" width="12" height="12" :src="rating.avatar">
                </div>
                <div class="time">{{rating.rateTime | formatDate}}</div>
                <p class="text">
                  <span :class="{'icon-thumb_up': rating.rateType === 0, 'icon-thumb_down': rating.rateType === 1}"></span>
                  {{rating.text}}
                </p>
              </li>
            </ul>
            <div class="no-rating" v-show="!food.ratings || !food.ratings.length">暂无评价</div>
          </div>
       </div>
      </div>
    </div>
  </transition>
</template>
<script>
import Vue from 'vue'
import {formatDate} from 'common/js/date'
import BScroll from 'better-scroll'
import Split from 'components/split/split'
import Cartcontrol from 'components/cartcontrol/cartcontrol'
import RatingSelect from 'components/ratingselect/ratingselect'
const ALL = 2
export default {
  props: {
    food: {
      type: Object
    }
  },
  data () {
    return {
      showFlag: false,
      selectType: ALL,
      onlyContent: true
    }
  },
  filters: {
    formatDate (time) {
      let date = new Date(time)
      return formatDate(date, 'yyyy-MM-dd hh:mm')
    }
  },
  methods: {
    show () {
      this.showFlag = true
      // 页面显示的时候调用better-scroll组件
      this.$nextTick(() => {
        if (!this.scroll) {
          this.scroll = new BScroll(this.$refs.food, {
            click: true
          })
        } else {
          this.scroll.refresh()
        }
      })
    },
    hide () {
      this.showFlag = false
    },
    addFirst (event) {
      Vue.set(this.food, 'count', 1)
      // 向上传递事件 出发父级goods里面shopcart里面的小球事件
      this.$emit('cart-add', event.target)
    },
    addFood (target) {
      this.$emit('cart-add', target)
    },
    selectRating (type) {
      this.selectType = type
      this.$nextTick(() => {
        this.scroll.refresh()
      })
    },
    toggleContent () {
      // 点击selectrating组件的只看有内容的评价 在这里改变状态 并传递下去
      this.onlyContent = !this.onlyContent
      this.$nextTick(() => {
        this.scroll.refresh()
      })
    },
    needShow (rateType, text) {
      if (this.onlyContent && !text) {
        return false
      }
      if (this.selectType === ALL) {
        return true
      } else {
        return rateType === this.selectType
      }
    }
  },
  components: {
    Cartcontrol,
    Split,
    RatingSelect
  }
}
</script>
<style lang="stylus" rel="stylesheet/stylus">
@import '~common/stylus/mixin'
  .food
    position fixed
    left 0
    right 0
    top 0
    bottom 48px
    z-index 30
    width 100%
    background #fff
    &.move-enter-active, &.move-leave-active
      transition all 0.3s linear
    &.move-enter, &.move-leave-to
      transform translate3d(100%, 0, 0)
    .image-header
      position relative
      width 100%
      height 0
      padding-top 100%
      img
        position absolute
        top 0
        left 0
        width 100%
        height 100%
      .back
        position absolute
        top 10px
        left 0
        .icon-arrow_lift
          display block
          padding 10px
          font-size 20px
          color #fff
    .content
      position relative
      padding 18px
      .title
        line-height 14px
        margin-bottom 8px
        font-size 14px
        font-weight 700
        color rgb(7, 17, 27)
      .detail
        height 10px
        line-height 10px
        margin-bottom 18px
        font-size 0
        .sell-count, .rating
          font-size 10px
          color rgb(147, 153, 159)
        .sell-count
          margin-right 12px
      .price
        font-size 0
        font-weight 700
        line-height 24px
        .now
          color rgb(240, 20, 20)
          margin-right 8px
          font-size 14px
        .old
          font-size 10px
          color rgb(147, 153, 159)
          text-decoration line-through
      .cartcontrol-wrapper
        position absolute
        right 12px
        bottom 12px
      .buy
        position absolute
        right 18px
        bottom 20px
        z-index 10
        height 24px
        line-height 24px
        padding 0 12px
        box-sizing border-box
        font-size 10px
        border-radius 12px
        color #fff
        background rgb(0, 160, 220)
        &.fade-enter-active, &.fade-leave-active
          transition all 0.4s
        &.fade-enter, &.fade-leave-to
          opacity 0
    .info
      padding 18px
      .title
        line-height 14px
        margin-bottom 6px
        font-size 14px
        color rgb(7, 17, 27)
      .text
        line-height 24px
        padding 0 8px
        font-size 12px
        color rgb(77, 85, 93)
    .rating
      padding-top 18px
      padding-bottom 15px
      .title
        line-height 14px
        margin-left 18px
        font-size 14px
        color rgb(7, 17, 27)
      .rating-wrapper
        padding 0 18px
        .rating-item
          position relative
          padding 16px 0
          border-1px(rgba(7, 17, 27, 0.1))
          .user
            position absolute
            right 0
            top 16px
            line-height 12px
            font-size 0
            .name
              display inline-block
              margin-right 6px
              vertical-align top
              font-size 10px
              color: rgb(147, 153, 159)
            .avatar
              border-radius 50%
          .time
            margin-bottom: 6px
            line-height: 12px
            font-size: 10px
            color: rgb(147, 153, 159)
          .text
            line-height: 16px
            font-size: 12px
            color: rgb(7, 17, 27)
            .icon-thumb_up, .icon-thumb_down
              margin-right: 4px
              line-height: 16px
              font-size: 12px
            .icon-thumb_up
              color: rgb(0, 160, 220)
            .icon-thumb_down
              color: rgb(147, 153, 159)
        .no-rating
          padding: 16px 0
          font-size: 12px
          color: rgb(147, 153, 159)
</style>